The article presents the results of a study of the influence of summer and winter siderat crops on the growth, development, yield, yield of marketable and seed tubers, the reproduction rate of early and medium early potato varieties. It was revealed that the highest of marketable yield (30.0-35.0 t / ha), yield of seed (21.2-25.4 t / ha) tubers with a high breeding coefficient (6.4-7.7) was obtained from potatoe varaties after winter siderate crops - peas and peas + oil radish.Wherein, the share of degenerated tubers did not exceed 3.0-3.4%.